ADE9078ACPZ datasheet(62/108 Pages) AD

62 / 108 page

Data Sheet

ADE9078

Rev. 0 | Page 61 of 107

VAP

VBP

VCP

VAN

AGND

DGND

NEUTRAL

VBN

VCN

VBN

220V

–150°

0.353V

220V

120°

0.353V

PHASE C

VCN

PHASE A

PHASE B

VAN

220V

30°

220V

–150°

220V

120°

PHASE A

PHASE B

220V

30°

0.353V

30°

VCONSEL = 011

VA, VB, VC

Figure 95. Non-Blondel Compliant 4-Wire Delta

The phasor diagram is shown in Figure 85. Phase sequence

error detection is performed based on the expected ABC

sequence (see the Phase Sequence Error Detection section for

more information).

To calculate the total power (active, reactive and apparent), add

the contribution from Phase A, Phase B, and Phase C.

SERVICE TYPE SUMMARY

To summarize, the ADE9078 can be used in many different

configurations to measure 4-wire wye, 4-wire delta, and 3-wire

delta installations. Table 24 summarizes which VCONSEL and

ICONSEL settings to use for each configuration.

Table 24. Service Type and VCONSEL and ICONSEL Setting Summary

Service Type

Ground

Reference

Figure Reference

No. of Voltage

Sensors

Required

VCONSEL Setting

No. of Current

Sensors Required

ICONSEL

Setting

4-Wire Wye

Neutral

Figure 89

000

Isolated

Figure 90

000

3-Wire Delta

Phase B

Figure 91; Figure 89 with

Phase B tied to neutral

001 (VB = VA − VC)

0: IB has current

sensor

1: IB = −IA − IC

Isolated

Figure 90 with Phase B

tied to neutral

001 (VB = VA − VC)

0: IB has current

sensor

1: IB = −IA − IC

Isolated

Figure 93

100 (VA = VA − VB;

VB = VA − VC; VC =

VC − VB)

0: IB has current

sensor

1: IB = −IA − IC

4-Wire Delta

Neutral

Figure 89 (note that the VA

and VB phasor diagram

follows Figure 85)

000

4-Wire Wye,

Non-Blondel

Compliant

Neutral

Figure 94

010 (VB = VA

− VC)

4-Wire Delta, Non-

Blondel

Compliant

Neutral

Figure 95

011 (VB = −VA)

0: IB has current

sensor

1: IB = −IA − IC

3-Wire Single-Phase

Neutral

Not applicable

1 or 2

000

1 to 2

3-Wire Network

Neutral

Not applicable

000

Multiple Single-

Phase Circuits

Neutral

Not applicable

000

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